Apparatus for producing kefir powder.



A. ROSENBERGER.

APPARATUS FOR PRODUCING KBFIR POWDER.

APPLICATION FILED JUNE 29, 1908.

Patented May 3, 1910.

4 UNITED OFFICE.

ARTHUR ROSENBERG-ER, 0F BERLIN, GERMANY.

APPARATUS FOR PRODUCING KEFIR POWDER.

Specification of Letters Patent.

Application filed June 29, 1908. Serial No. 440,993. I

To all whom 'it may concern:

Be it known that I, ARTHUR Rosnxnnnonn,

owner of a cheinists shop, a subject of the in a simple and practicalmanner and at the same time an apparatus is produced wh ch 2 will beeasy of operation, proving also to be cheap and economical tomanufacture.

The apparatus serving to carry out the process is illustrated on thedrawing, where Figure 1 shows a sectional front view of the apparatus.Fig. 2 is a vertical sectional view on the line AB of Fig. 1. Fig. 3 a

total view of the apparatus -in connection with the vacmun-apparatus.Fig. -l.- is an enlarged cross-sectional view, in part, ofthe outercasing, and having the valved openin therein.

Similar letters refer to similar-s parts throughout the several views.

In the cylindrical receptacle a, which may be made of any suitablematerial, are inserted any desired number of tubes 6, I), b

provided with perforations. The tubes are fastened in the receptacle (1,to the frontwalls 0 and I], said wall I: being delachably secured to thereceptacle, while the wall 11 is a part thereof and water can passaround them on all sides. At the wall 1.: the tubes 7), b, b areaccessible, they project through this wall and can be closed on theoutside. by 3 cocks or caps m, and a cap a, similar to the caps m isalso provided for closing the pipe when detached from the tube m. Thetubes are in the interior of the receptacle a so arranged on the walls(.l and (Z that they can be easily screwed oll' and removed for thepurpose of being tilled with .kclir fungi and later on cleaned; This isaccomplished by providing the wall of the casing lb adjacent the wall 0of the receptacle a with an late in unison therewith.

Patented May 3, 1910.

opening s which can be closed by any suitable valve preferably having abearing in journal brackets it through the medium of a belt or the likeu and the endwall of the U0 casing may be secured by means of bolts topassed through flanges w. The receptacle a has further at thefront-walls c and 'd the shafts f and y resting in the bearings f andarranged in the casing h which complelely surrounds the receptacle a andsaid shafts are anchored ormtherwise fastened to the walls 0 and (lrespectively, so as to 1'0- By means of a suitable driving-gear la(toothed wheels or the like) the shafts f, r and thereby also thereceptacle (1 can be slowly put into a rotating motion. The shafts f and9 pass in the casing It through stufiingboxes by which the casing ismade perfectlytight against the outside air.

The casing serves to receive warm water, air, or the like,whiclrentircly surround the receptacle (L the water, or the like, isconveyed iuto or out. of :the casing by a suit- 30 able conduit of.pipes. In order to fill the receptacle u. with the desired liquid, thecap a is removed from-the hollow shaft and connection may bemade'thcrcwilh,liquid llowing into the said receptacle through the 5angle-tube r to remove the product which has been inlrodumal into thereceptacle a,- the axle 1/ is hollow and -communicntes through theintermediate piece I with the tubes 1), 71, IF, An angle-lube i at asmall 9 distance above the bottom wall of the receptacle o, with al'unncbshapcd outlet-opening, likewise serves to rcmove'tho product,being connected with the hollow shalt r or with the intermediate partsI. A suitable conduit of tubes 11!, which can be easily detached, leadsto a -vaculun-apmratus of a system already known and has a valvedconnection 1' therewith, as it is thought-will be-i'eadily understoml,is for the purpose of controlling the communication therewith (see Fig.3). i

The process of producing the kelir preporation by means of thisapparatus is as follows: licl'orc lilling the receptacle (1 with themilk. the kclir fungi are introduced into the tubes 1., I), lntothereceptacle is now poured the most suitable milk, for instance,aseptically won t'reslrinilk, through the hollow axle g, by means of afunnelshaped tube, whereupon the receptacle a is heated to 30" C. bywarm water, air, gas, or

. manner.

the like, and ut into a slow rotating movement by the rivinggear k. Inconsequence -of this continuous rotation the milk comes sufficientlyinto contact with the .kefir fungi and hereby and the uniformtemperature the growing of the fungi in the milk is especlally favorablyinfluenced, and there is thusvobtained a kefir of an'always uniformcondition. After a certain time,'.-the movement is stopped and thehollow axle g is put into communication with the pipe m leading to thevacuum, while the air is completely shut oif. By means of the vacuum thecontents of the receptacle a are now entirely conveyed to thevacuum-receptacle C through the tubes 71 and m and the .hollow shaft 9after the vacuum-receptacle C has previously been sterilized. In thevacuum the mass is now evaporated at 30C. until it is dry, whereupon theproduct won is taken out of the vacuum and, after adding milk-'- "videdwith a removable front wall, a series of perforated tubes extendinglongitudinally Within said receptacle,-said tubes hav ing vopen endsadjacent one end wall of the casing, removableclosures for saidopenings, one of the aforesaid shafts being hollow and having angularconnections with the series of tubes, an angular tube leading fromconnections, said tube having communication with the interior of therece tacle, and means connected with said ho low shaft for rotatingsame. g 2. In an apparatus for producing kefir,

the combination with a casing of areoeptacle rotatably mounted withinsaid casing,.a

series of perforated tubes Within said 1e cept-acle, a vacuumapparatusinthe form'of an evaporator located adjacent said receptacle,and means for effecting communication between said vacuum apparatus andthe interior of the rece tacleh 3. In an apparatus or producing 'kefir,the combination with a caslng, of a receptacle within said casing,shafts for said receptacle rotatably mounted in the walls of the casing,one of said shafts comprising a hollow tube having communication withthe interior of the receptacle, a vacuum apple-v ratus, said vacuumapparatus provided wlth suitable evaporating means having valvedconnection with the hollow shaft.

4. In an apparatusforproducing-kefir, the combination with a stationarycasing, of a receptacle one of said end walls being provided with anopening, a valve for said opening whereby access may be had to theinterior :casing, a removable, cover for the receptacle adgacent saidend, a series of tubes rigidly carried within the receptacle,.

and means in geared connection with thereceptacle for -rotating thesame.

In testimony whereof I 'have signed my name to this specification in thepresence of two subscribing witnesses.

. ARTHUR ROSENBERG ER Witnesses: i

HENRY HASPER, WOLDEMAR I-L JFP:

